Separating apparatus.



I. CHRIST, DECD.

w. H. CHRIST, EXECUTOR. SEPARATING APPARATUS.

APPLICATION FILED JUNE 29.1912.

. Patented Aug. 29, 1916' 2 SHEETSSHEET '1.

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l. CHRIST, DECD.

w. H. CHRIST, EXECUTOR.

SEPARATING APPARATUS.

APPLICATION FILED JUNE 29, 1912. 1,1 96,750. Patented Aug. 29, 1916.

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ISAAC CHRIST, OF TAIVIAQUA, PENNSYLVANIA; WILLIAM H. CHRIST EXECUTOR OF SAID ISAAC CHRIST, DECEASED.

SEPABATING APPARATUS.

Specification of Letters Patent.

Patented Aug. 29, 1916.

To all whom it may concern: I

Be itknown that I, ISAAC CHInsT, a citizen of the United States, residing at Tamaqua, in the county of Schuylkill and State of Pennsylvania, have invented new and useful Improvements in Separating Apparatus, of which the following in'a specification.

This invention relates to apparatus for separating the heavier mine products from the lighter, and has particular reference to that type of such apparatus generally termed jigs, in which the separation is effected by utilizing the difierences in specific gravity of the Varying grades of material which are to be operated upon. 7 In jigging soft or bituminous coal, a very large percentage of fine coal passes through the apertures of the jig pan into the water tank, and is carried off with the slate, bone or other impurities, resulting'in quite a serious loss.

One of the objects of the present invention is to. provide means for recovering the finer particles of the high grade material which pass off with the impurities.

A further object is to provide an improved jig or separator adapted to stratify the different grades of material'and to automatically separate them in the course of its operation.

A further object is to provide means for providing a more perfect and complete separation of the high grade material from the refuse. v

The invention will be hereinafter fully set forth and particularly pointed'out in the claims.

In the accompanying drawings: Figure 1 is a longitudinal sectional view of aseparating apparatus embodying my invention. Fig. 2 is a plan view thereof. Fig. 3 is a transverse sectional view.

Referring to the drawings, 10 designates a water tank provided at one end with wells 11 and 12, and at the other end with a similar well 13, the main portion of the tank having upwardly extended converging bottom walls 14, 15, the wall 14 being provided with an overhanging portion 16. The upper edges of the tank are surrounded by a trough 17 which communicates with the wells 11 and 12 through channels 18. v

The jig pan may be of any suitable construction but I prefer to employ theform illustrated and described in Letters Patent 1,030,231, granted to Isaac and Henry K.

Christ June 18, 1912. As illustrated the jig pan 20 is provided with bosses 21 to which are pivotally connected the crank arms 22 of a power shaft 23 supported in suitable bearing 24 mounted on the sides of the tank 10. Power'is applied to the crank shaft 23 from any suitable source, as for instance a motor 25. In this manner an up and down movement is imparted tothe jig pan and the latter is guided by guide members 21 which engage grooved guides 27 secured to the sides of the tank. The bottom of the pan is provided with perforations 28, and a discharge opening 29 is located at the forward end thereof and through which the heavier material is discharged. Said opening serves as the entrance to a pocket 30, the bottom of which is closed by a gate 31 pivoted at 32 and arranged to discharge toward the receiving end of the jig, said gate being suitably counterbalanced, as indicated at 31*. It will be noted that the bottom of the pan overhangs the pocket 30. The material is fed to the pan over a supply chute 33 secured to the upper edge of the rear or receiving end of the jig pan, and adjacent-said chute is an adjustable gate 34, the space between said chute and said gate forming a receptacle within which all of the material to be separated and classified, is, at the outset, deposited.

The bottom wall 14 extends under the jig pan almost to the forward end of the latter and all impurities, together with the finer particles of the more valuable materials whichpass through the perforations 28 are directed by said bottom wall to the bottom of the well 13. From, this point said materials are gathered up by a chain or bucket elevator 40 of any preferred construction and operated in suitable manner by the motor 25, the material being discharged by said elevator upon a chute 41 arranged tov direct the discharged material ontop of the material already in the jig pan. The heavierparticles that are directed into the pocket 30 are discharged by the gate'31 onto the bottom 15 which directs such material to a second bucket elevator 43 which discharges the same at any suitable point. The finer particles pass over the upper edge of the jig pan into a discharge chute 44 which digreets said material to the elevator 45 in the well 12. It will be understood, of course, that all of the elevators are operated by suitable belt and pulley connections with the motor 25.

The operation is as follows:The tank is filled with water to the desired depth, and the motor started to rotate the crank shaft 28. The effect of this rotation is to impart an up and down movement of the jig pan while in the water, and while the pan is in motion, coal or other material, is fed over the chute 38 and passes beneath the gate 3 1. Asthe material is passed along the inclined bottom of the jig pan by reason of the vibrations imparted in the reciprocation of the latter the heavier material tends to move toward the bottom and the lighter material to the top. The motion of the jig pan also forces the water through the apertures 28, further agitating the material and tending to turn the long pieces of slate 01' heavy material parallel with the longitudinal line of the pan. As the operation progresses the slate and heavier material drop into the pocket 30, the lighter material passing over the top of the pile and into the discharge chute 4 When the weight of the material inthe pocket 30 becomes sufiicient the gate 31 will drop and permit the material in the pocket to be deposited upon the bottom wall 15. In handling finematerial, however, such as bituminous coal it has been found that there is a very high per centage of loss by reason of the fine particles of good coal passing through the perforations 28 with the slate and other refuse. Such material falls upon the bottom wall 14 and is directed to the elevator 40 by which it is raised and deposited upon a chute 41 which is arranged to direct the discharged material on top of the material already in the jig pan. Agitation of the jig pan will cause the heavier particles of this material to work down but will maintain the lighter particles on top so that I am enabled to recover a very high percentage of material that would otherwise be wasted. In conned tion with the reciprocation of the jig pan an agitation or circulation of the water re sults which eventually causes the latter to splash and overflow from the tank. To meet this condition I provide the trough to catch the overflow and a rigid guide in the well or compartment 12 serves to form a channel 18 which compels the water from the trough 17 to flow to the bottom of said compartment. The movement of the iig pan causes a circulation upwardly and forwardly and hence by discharging the water from the trough at the forward end and near the bottom advantage is taken of the direction of circulation caused by the movement of the jig pan, to compel the overflow water to be included in the circulation, and not remain stagnant in the troughs.

In connection with the foregoing I desire it to be understood that while I have described my invention as particularly adapted for the separation of soft coal I do not desire to limit myself in this particular as the same may be utilized for separating other materials of different specific gravities without departing from the spirit thereof.

Having thus explained the nature of my invention and described an operative manner of constructing and using the same, although without attempting to set forth all of the forms in which it may be made, or all of the forms of its use, what I claim 1s l. A separating apparatus comprising a tank, a jig pan mounted to reciprocate therein and provided with a perforated bottom, a supply chute for said jig pan, means for collecting material that passes through said perforated bottom, and means for depositing said material on top of the material supplied by said chute.

2. A separating apparatus comprising a tank provided with a compartment, a jig pan mounted to reciprocate in said tank and provided with a perforated bottom, a supply chute for said jig pan, means for direct ing the material that passes through said perforated bottom to said compartment, and means for depositing said material on top of the material supplied by said chute.

3. A separating apparatus comprising a tank provided with a compartment at one end, a jig pan mounted to reciprocate in said tank and provided with a perforated bottom, a supply chute for said jig pan, means for directing the material that passes through said perforated bottom to said compartment, and an elevator for depositing .said material on top of the material supplied by said chute.

i. A separating apparatus comprising a tank, a pan mounted to reciprocate therein and provided with a perforated bottom, said tank having an inclined bottom wall to catch material passing through said perforated bottom, a supply chute for said jig pan, and means for depositing said material on top of the material supplied by said chute.

5. A separating apparatus comprising a tank having upwardly extended converging bottom walls, a pan mounted to recip rocate in said tank and provided with a perforated bottom, one of said bottom walls being provided with an overhanging portion to catch material passing through said perforated bottom, a supply chute for said jig pan, and means for depositing said material on top of the material supplied by said chute.

6. A separating apparatus comprising a tank provided with a compartment, a jig pan mounted to reciprocate in said tank and provided with a perforated bottom, said tank having an inclined bottom Wall leading from said compartment to catch material passing through said perforated bot tom, a supply chute for said jig pan, and an elevator in said compartment for depositing said material on top of the material supplied by said chute.

7. A separating apparatus comprising a tank having compartments at each end, a jig pan having a perforated bottom, means for directing the refuse material to one of said compartments, means for directing material passing through the perforated bottom of the jig pan to the other compartment, a supply chute for the jig pan, and means for depositing the last mentioned material on top of the material supplied by said chute.

8. A separating apparatus comprising a tank having compartments at each end and converging bottom Walls extending to said compartments, a jig pan mounted in said tank and having a perforated bottom, one of the bottom Walls of said tank being provided With an overhanging portion to catch material passing through the perforated bottom of the jig pan, means for depositing said material on top of the material normally fed to said jig pan, and means for depositing refuse on the other bottom Wall.

In testimony whereof I have hereunto set my hand in presence of two subscribing Witnesses.

- ISAAC CHRIST. Witnesses:

SAMUEL R. BEARD, RnBEocA S. BEARD.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

